Evaluation of Bone height changes in computer guided Implant Overdentures

Research Abstract

The present study was conducted to evaluate bone height changes around implants installed with conventional & computer guided stent implant placement in implant overdentures. Twelve completely edentulous patients were selected had received two implants in inter-foramina areas. They were divided into two groups. Group (I): a conventional surgical stent was used. However; in Group (II) a computer guided surgical stent was used for implant placement. For both Groups, Mandibular overdentures were constructed retained by Locator attachments. Crestal bone loss was assessed with the aid of CBCT at time of denture insertion, 3 , 6, and 12 months later. The data were collected and presented as mean values of bone height loss. The data were then statistically analyzed. The results revealed that there was no statistically significant difference between the two studied groups at the first 6-months after implant function. However, after 12 months the bone loss was significantly lower in Group (II) than Group (I). Within the limitations of the present study it may be concluded that: The use of computer guided implant installation may induce less crestal bone resorption than conventionally placed implants.

Research Keywords

Implant overdentures, Computer guided , locator attachment, Crestal bone loss